The hormonal basis of the initiation of labour.
D004967:Estrogens / Q000502:physiology*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000502:physiology*; D010121:Oxytocin / Q000502:physiology*; D011247:Pregnancy / Q000502:physiology; D011374:Progesterone / Q000502:physiology*
D004967:Estrogens; D011374:Progesterone; D010121:Oxytocin